Hello All. Does anyone know where I might find a replacement truss rod nut for a vintage D-40? Mine's a '76. I have checked on eBay and there is nothing except Gibson nuts, which don't work in a Guild because the diameter is too large. A local luthier put in a Gibson replacement nut in my guitar and it's clearly wrong. You cannot tighten the nut enough to get the neck correct because the nut goes down too much on the bolt thread where it rubs against the casing enclosure in front. I was thinking of contacting Guild directly to get one.